What is the term for the difference in pressure between the evaporator and condenser?

The term that describes the difference in pressure between the evaporator and condenser is "pressure differential." This concept is fundamental in refrigeration and air conditioning systems, as it directly affects the efficiency and operation of the refrigerant cycle. The evaporator operates at a lower pressure, allowing the refrigerant to absorb heat and evaporate into a gas, while the condenser operates at a higher pressure, where the gas releases heat and condenses back to a liquid.

Understanding the pressure differential is crucial for troubleshooting and optimizing the performance of refrigeration systems. If the pressure differential is too low or too high, it can lead to inefficient operation or system failure. Maintaining the correct pressure differential enables the system to function properly, promoting effective heat exchange and improving energy efficiency.